CN105672979A - Access method of seven-core armoured cable for well logging - Google Patents
Access method of seven-core armoured cable for well logging Download PDFInfo
- Publication number
- CN105672979A CN105672979A CN201510994991.4A CN201510994991A CN105672979A CN 105672979 A CN105672979 A CN 105672979A CN 201510994991 A CN201510994991 A CN 201510994991A CN 105672979 A CN105672979 A CN 105672979A
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- Prior art keywords
- hole
- passage
- aboveground
- cpu
- core
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/04—Distributing means for power supply in mines
- E21F17/06—Distributing electric power; Cable networks; Conduits for cables
Abstract
The present invention relates to the technical field of cable equipment, and specifically relates to an access method of a seven-core armoured cable for well logging. When borehole seismic exploration (VSP measurement, cross-hole seismic, etc.) is carried out, especially micro seismic hydraulic fracturing monitoring and measurement are carried out, real-time acquisition with high sampling rate is required, downhole multistage three-component data are transmitted to the ground and saved for processing and interpretation, so that the purpose of micro seismic hydraulic fracturing monitoring and measurement is achieved. The facts that the transmission distance of a stranded wire with a transmission rate of 1MHZ/S is 5000M, and the transmission distance of an adjacent parallel wire with a transmission rate of 0.5MHZ/S is 5000M are successfully examined in the field in the prior art, a general access method of a seven-core armoured cable for well logging is changed to be that one path of the stranded wire with the transmission rate of 1MHZ/S and two paths of the adjacent parallel wires with the transmission rate of 0.5MHZ/S are simultaneously used for transmission, then hardware and software structure conditions of current instruments are changed, so that the data transmission rate can be improved to be 2MHZ/S.
Description
One, technical field:
The present invention relates to cable machinery technical field, be specifically related to a kind of cut-in method logged well with 7 core armored cables.
Two, background technology:
In doing well during seismic prospecting (VSP measurement, crosshole seismic etc.), when particularly doing microseism fracturing monitoring measurement, require high sampling rate Real-time Collection and down-hole multilevel three component seismic data is transferred to simultaneously ground preserve process explanation in real time to do, reach microseism fracturing monitoring measurement purpose.
Former general well logging with the cut-in method of 7 core armored cables is: when down-hole three-component at different levels is acquired, data are transmitted earthward by cable, and 1,7 core twisted wire transmits data earthward with several biography rates of 1MHZ/S; 2,3 core adjacent lines are used as system down-hole power, 150V high input voltage down-hole transfers 24V to and reduces 5000M cable voltage drop, 4 heart yearns are used as instrument, and to do CCL, r gamma school when moving in well deep, and 5, when 6 core adjacent lines instruments before acquisition are to designated depth position, controlling motor backup at different levels, arm, its cable length is about 5000M, referring to Fig. 1.
Above-mentioned cut-in method transfer rate is that 1MHZ/S twisted wire is defeated to be transmitted from 5000M from 5000M and 0.5MHZ/S adjacent flat line.
Three, summary of the invention
The present invention provides a kind of cut-in method logged well with 7 core armored cables, and its number biography rate can reach 2MHZ/S.
For achieving the above object, the technical solution used in the present invention is:, the well logging cut-in method of 7 core armored cables, it is characterised in that: described cable is 7 heart yearns, and 1,7 heart yearn connects aboveground and down-hole number biography passage 1;
2,3 core adjacent flat lines one end when non-acquired connects with the aboveground deep module in CCL, r gamma school, and the deep module in CCL, r gamma school of the other end and down-hole connects; When gathering, one end is connected with aboveground time-shared switch, and the other end adds electrical relay and is connected number of ports biography passage 2 with the collection of down-hole;
5,6 core adjacent flat lines control module when non-acquired with aboveground backup, receipts arm and are connected, and the other end controls module with the backup of down-hole, receipts arm and is connected; When gathering, one end is connected with aboveground time-shared switch, and the other end adds electrical relay and is connected number of ports biography passage 3 with the collection of down-hole;
One end of 4 heart yearns is connected with aboveground >=160V power supply, the power supply changeover device of the other end and down-hole;
Described number passes passage 1, number passes passage 2 sum biography passage 3 and is connected with the RS485 bus of down-hole,
Down-hole number passes the entrance of joint CPU and is connected with RS485 bus, and its outlet is connected by CPU, is distributed by CPU, and the number being coupled with down-hole passes passage 1, number passes passage 2 sum and passes passage 3, by 1,7 heart yearn of cable; 2,3 heart yearns; 5,6 heart yearns are transferred to that aboveground number passes passage 1, number passes passage 2 sum and passes passage 3 and passed joint CPU by aboveground number and deliver to instrument host chronologically and record respectively and show;
The model of described CPU is MSP430F2619.
Described time-shared switch is for gathering power-on switch;
It is 22V that described collection adds the supply voltage of electrical relay.
Compared with prior art, the invention have the advantages that and effect: the present invention changes the cut-in method of general well logging 7 core armored cables, with a road 1MHZ/S twisted wire, adding two-way 0.5MHZ/S adjacent flat line and transmit simultaneously, reaching to improve number biography rate is the purpose of 2MHZ/S.
Four, accompanying drawing illustrates:
Fig. 1 is the cut-in method schematic diagram of former general well logging 7 core armored cables;
Fig. 2 is that the present invention logs well the cut-in method schematic diagram with 7 core armored cables;
Fig. 3 is data transfer rate figure;
Fig. 4 is the deep module in instrument down well placement CCL, r gamma school and acquisition channel 2 timesharing conversion line figure;
Fig. 5 is that down-hole respectively gathers joint backup, receives arm control module and acquisition channel 3 timesharing conversion line figure.
Five, detailed description of the invention:
Below in conjunction with accompanying drawing, the present invention will be described in detail:
Referring to Fig. 2 Fig. 5: the present invention logs well by each cable core access way of 7 core armored cables and is: when down-hole three-component at different levels is acquired with 2MHZ/S speed, data can divide three routes by 7 heart yearn cable device transmission earthward: 1,7 heart yearn is connected aboveground and down-hole number and passed passage 1 and transmit as the data of 1MHZ/S;
2,3 core adjacent flat lines one end when non-acquired connects with the aboveground deep module in CCL, r gamma school, and the deep module in CCL, r gamma school of the other end and down-hole connects puts the deep task in row instrument down well placement school; When gathering, one end is connected with aboveground time-shared switch, and the other end adds electrical relay and is connected number of ports biography passage 2 as the transmission of 0.5MHZ/S data with the collection of down-hole; (referring to Fig. 4)
5,6 core adjacent flat lines control module when non-acquired with aboveground backup, receipts arm and are connected, and the other end is connected realization with the backup of down-hole, receipts arm control module and is pushed to or leave the borehole wall by each for down-hole sensor; When gathering, one end is connected with aboveground time-shared switch, and the other end adds electrical relay and is connected number of ports biography passage 3 as the transmission of another 0.5MHZ/S data with the collection of down-hole; (referring to Fig. 5)
One end of 4 heart yearns connects with aboveground power supply (>=160V, DC), and the other end is connected with the power supply changeover device (>=160V → 22.5V.DC) of down-hole; Realization will be greater than being equal to 160V high input voltage down-hole and transfers 24V minimizing 5000M cable voltage drop to.
Described number passes passage 1, number passes passage 2 sum biography passage 3 and is connected with the RS485 bus of down-hole,
Down-hole number passes the entrance of joint CPU and is connected with RS485 bus, and its outlet is connected by CPU, is distributed by CPU, and the number being coupled with down-hole passes passage 1, number passes passage 2 sum and passes passage 3, by 1,7 heart yearn of cable; 2,3 heart yearns; 5,6 heart yearns are transferred to that aboveground number passes passage 1, number passes passage 2 sum and passes passage 3 and passed joint CPU by aboveground number and deliver to instrument host chronologically and record respectively and show;
The model of described CPU is MSP430F2619.
When number passes the joint CPU first character joint received from RS485 bus (2MHZ), it is turned to number to pass passage 1(1MHZ/S by he) spread out of, when number passes joint CPU second byte received from RS485 bus (2MHZ), not yet completing its transmission owing to number passes passage 1, at this moment it is turned to number to pass passage 2(0.5MHZ/S by CPU) perform transmission; When the 3rd byte from RS485 arrives, number passes 1 transmission having completed the first byte, and at this moment it is turned to number to pass passage 1 and can then transmit the 3rd byte data by CPU; When number passes joint CPU the 4th byte received from RS485, number biography 1, number pass 2 and are all not fully complete its transmission, are now passed 3(0.5MHZ/S by number) perform transmission; When counting biography joint CPU the 5th byte received from RS485, the biography 1 that counts having completed transmission then passes the 5th byte, then takes turns to several biography 2, number biography 1, number biography 3...... successively
Therefore, the byte order of number biography joint 1 transmission is: the 1st byte; 3rd byte; 5th byte; ..... Namely number passes the joint 1 all of odd bytes of transmission.
Number passes the byte order of joint 2 transmission: the 2nd byte; 6th byte; 10th byte; .....
Number passes the byte order of joint 3 transmission: the 4th byte; 8th byte; 12nd byte; .....
Namely number passes joint 2 sum and passes the joint 3 all of even bytes of alternate transport.
So circulation, until terminating. (referring to Fig. 3)
Described time-shared switch is for gathering power-on switch;
It is 22V that described collection adds the supply voltage of electrical relay.
The present invention changes the cut-in method of general well logging 7 core armored cables, with a road 1MHZ/S twisted wire, adds two-way 0.5MHZ/S adjacent flat line and transmits simultaneously, and reaching to improve number biography rate is the purpose of 2MHZ/S.
Claims (3)
1. the well logging cut-in method of 7 core armored cables, it is characterised in that: described cable is 7 heart yearns, and 1,7 heart yearn is connected aboveground and down-hole number and passed passage 1;
2,3 core adjacent flat lines one end when non-acquired connects with the aboveground deep module in CCL, r gamma school, and the deep module in CCL, r gamma school of the other end and down-hole connects; When gathering, one end is connected with aboveground time-shared switch, and the other end adds electrical relay and is connected number of ports biography passage 2 with the collection of down-hole;
5,6 core adjacent flat lines control module when non-acquired with aboveground backup, receipts arm and are connected, and the other end controls module with the backup of down-hole, receipts arm and is connected; When gathering, one end is connected with aboveground time-shared switch, and the other end adds electrical relay and is connected number of ports biography passage 3 with the collection of down-hole;
One end of 4 heart yearns is connected with aboveground >=160V power supply, the power supply changeover device of the other end and down-hole;
Described number passes passage 1, number passes passage 2 sum biography passage 3 and is connected with the RS485 bus of down-hole,
Down-hole number passes the entrance of joint CPU and is connected with RS485 bus, and its outlet is connected by CPU, is distributed by CPU, and the number being coupled with down-hole passes passage 1, number passes passage 2 sum and passes passage 3, by 1,7 heart yearn of cable; 2,3 heart yearns; 5,6 heart yearns are transferred to that aboveground number passes passage 1, number passes passage 2 sum and passes passage 3 and passed joint CPU by aboveground number and deliver to instrument host chronologically and record respectively and show;
The model of described CPU is MSP430F2619.
2. a kind of cut-in method logged well with 7 core armored cables according to claim 1, it is characterised in that: described time-shared switch is for gathering power-on switch.
3. a kind of cut-in method logged well with 7 core armored cables according to claim 1 and 2, it is characterised in that: it is 22V that described collection adds the supply voltage of electrical relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510994991.4A CN105672979B (en) | 2015-12-28 | 2015-12-28 | The cut-in method of 7 core armored cables of well logging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510994991.4A CN105672979B (en) | 2015-12-28 | 2015-12-28 | The cut-in method of 7 core armored cables of well logging |
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| Publication Number | Publication Date |
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| CN105672979A true CN105672979A (en) | 2016-06-15 |
| CN105672979B CN105672979B (en) | 2018-05-15 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3530661A (en) * | 1969-03-21 | 1970-09-29 | Schlumberger Technology Corp | Method for prestressing armored cable |
| US4522464A (en) * | 1982-08-17 | 1985-06-11 | Chevron Research Company | Armored cable containing a hermetically sealed tube incorporating an optical fiber |
| CN1098471A (en) * | 1993-07-31 | 1995-02-08 | 石油大学(华东) | Downhole telemetery system net of oil well |
| CN201144688Y (en) * | 2007-10-26 | 2008-11-05 | 辽河石油勘探局 | Aggregate unit of multi-arm caliper and electromagnetic flaw detector |
| CN202650632U (en) * | 2012-04-25 | 2013-01-02 | 安徽宏源特种电缆集团有限公司 | Seven-core logging cable |
| CN203721372U (en) * | 2014-02-21 | 2014-07-16 | 西安弘传科技开发有限责任公司 | Deep well high-speed data transmission system cable |
-
2015
- 2015-12-28 CN CN201510994991.4A patent/CN105672979B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3530661A (en) * | 1969-03-21 | 1970-09-29 | Schlumberger Technology Corp | Method for prestressing armored cable |
| US4522464A (en) * | 1982-08-17 | 1985-06-11 | Chevron Research Company | Armored cable containing a hermetically sealed tube incorporating an optical fiber |
| CN1098471A (en) * | 1993-07-31 | 1995-02-08 | 石油大学(华东) | Downhole telemetery system net of oil well |
| CN201144688Y (en) * | 2007-10-26 | 2008-11-05 | 辽河石油勘探局 | Aggregate unit of multi-arm caliper and electromagnetic flaw detector |
| CN202650632U (en) * | 2012-04-25 | 2013-01-02 | 安徽宏源特种电缆集团有限公司 | Seven-core logging cable |
| CN203721372U (en) * | 2014-02-21 | 2014-07-16 | 西安弘传科技开发有限责任公司 | Deep well high-speed data transmission system cable |
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| CN105672979B (en) | 2018-05-15 |
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